Fix warning as error for V2

Change-Id: I70cfd971fda629011ba1be84fef15afea196d393
diff --git a/mbtk/libmbtk_lib_v2/common/mbtk_ntp.c b/mbtk/libmbtk_lib_v2/common/mbtk_ntp.c
index 5b23e37..704643a 100755
--- a/mbtk/libmbtk_lib_v2/common/mbtk_ntp.c
+++ b/mbtk/libmbtk_lib_v2/common/mbtk_ntp.c
@@ -72,14 +72,12 @@
 {
     char version = 1;
     long tmp_wrd;
-    int port;
     time_t timer;
     strcpy(protocol, NTPV4);
     /*判断协议版本*/
     if(!strcmp(protocol, NTPV1)||!strcmp(protocol, NTPV2)||!strcmp(protocol, NTPV3)||!strcmp(protocol, NTPV4))
     {
         memset(packet, 0, NTP_PCK_LEN);
-        port = NTP_PORT;
         /*设置 16 字节的包头*/
         version = protocol[5] - 0x30;
         tmp_wrd = htonl((LI << 30)|(version << 27) \
@@ -102,7 +100,6 @@
     }
     else if (!strcmp(protocol, TIME))/* "TIME/UDP" */
     {
-        port = TIME_PORT;
         memset(packet, 0, 4);
         return 4;
     }
@@ -117,7 +114,7 @@
     struct timeval block_time;
     char data[NTP_PCK_LEN * 8];
     socklen_t data_len = addr->ai_addrlen;
-    int packet_len, count = 0, result, i,re;
+    int packet_len, count = 0, result;
 
     /* 组织请求报文 */
     if (!(packet_len = construct_packet(data)))